The identical gun also appears as the Jieffeco, with the following inscription in upper case sans-serif characters, as follows:

PISTOLET AUTOMATIQUE JIEFFECO DEPOSE
BREVETS-259178-265491-LIEGE-BELGIUM

Matthews likewise lists another identical (or at least similar) gun marked as follows:

MRE. LIEGEOISIE D’ARMES Á FEU
BREVETS-259178-265491-LIEGE-BELGIUM

Type III New Model Melior
The next gun I have to examine is serial number 125182, so it is later than the other guns described, if we assume a continuous series of numbers. I’m referring to this gun as the Type III, but there could easily be other models between these types.
The Type III retains the separate breech block of the earlier pistosl, but the spring-loaded lever on the dovetailed locking piece no longer serves as the rear sight. Instead there are two raised ridges just in front of the locking piece which are nearly invisible when viewed from behind and hence virtually useless. The captive recoil spring has been retained with no changes. The contour of the rear of the slide has been modified slightly, and the lower edges of the slide are flat instead of machined at an angle.

New Model Melior - Type III

The design of the breech block has been modified so that the firing pin and firing pin spring are not retained but can slide out the rear of the block. A finger of metal rises up from the rear of the frame to form a backstop for the spring guide, which has a U-shaped end piece which fits over this metal finger. Only the last two digits of the serial number are stamped on the breech block.
The piston-shaped sear has been eliminated in favor of a browning-style pivoting sear. A small lever has been added near the top of the magazine well to serve as a magazine safety--this lever blocks the sear until the magazine is almost fully inserted. The gun also features a grip safety which blocks the sear when not depressed. Altogether, this is a more sophisticated and safer pistol than its predecessor. The quality of the machining is much higher than on the earlier gun, with no machine marks visible on the exterior. The interior of the frame is much cleaner as well.
The slide inscription on the left side is the same as on the earlier gun, but the word “Melior” is now in sans-serif characters. Descargar coronacion jose donoso pdf.

M E L I O R
BREVETS-259178-265491-LIEGE-BELGIUM

Numbers
Belgian proof marks are evident on the slide, frame, and barrel. On the left side of the frame, just above the bow of the trigger guard is the caliber designation, CAL25. Most small parts are stamped with the last two digits of the serial number. The grips are the same as on the early model, but the right grip is retained by a single screw at the center rear instead of two screws.

Liege Shotgun Serial Numbers

The magazine is identical to the earlier gun, except it is blued instead of nickeled.
Type IV New Model Melior

New Model Melior - Type IV

The final gun I have to examine is represented by serial numbers 8255, 13077, and 22020. I believe, as did Matthews, that the Type IV is numbered in a different series from the other guns. I’m calling this gun the Type IV for lack of a better designation. I find no such designation in old catalogues, where all the Melior guns are referred to as the Melior 6.35mm, and either the length of the gun is specified as the distinguishing feature of the different sizes or scaled pictures of the guns are provided.
The Type IV was clearly patterned after the Walther Model 9, which took the vest pocket pistol market by storm when it appeared in 1921. All the world’s major pistol manufacturers wanted a product that could compete with the Walther.
The Type IV retains the separate breech block and slide held together by a transverse locking piece, but in the case of the new small pistol the locking piece is moved considerably forward on the slide and the spring-loaded locking lever is reversed so that it points forward and also serves as a top-mounted extractor. Like the Walther, the Type IV Melior has an external connector which runs beneath the grip plate on the right side. An integral disconnector projects upward from the connector at right angles. Also like the Walther, the recoil spring has been moved to beneath the barrel. The Melior has an ejector on the left side made from very thin sheet metal, which is easily broken off. Both the Walther Model 9 and the Type IV Melior have top-mounted extractors and eject the empty shell out the top of the gun rather than to the side.
Two significant features of the Type IV New Model Melior are the grip safety and internal hammer. Very few other imitators of the Walther Model 9 have grip safeties, the only one I can think of being the early variant of the MAB Model B. The Melior grip safety does not pop out unless the hammer is cocked, and so serves as a cocking indicator. I have not disassembled the gun so far as to describe the mechanism precisely, but the grip safety appears to block the sear, whereas the manual safety only blocks the trigger, but together the two safeties should make the gun safe to carry with a round in the chamber. To my knowledge, none of the other Model 9 imitators have an internal hammer. One of the problems with the Walther Model 9 is that, if the gun remains cocked for long periods of time, the striker spring becomes compressed and doesn’t function properly. This problem is obviated by having an internal hammer.
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The grip plates are made of horn. The left plate is checkered and has a circular blue insert, with MELIOR on top and LIEGE at the bottom surrounding the Robar Company monogram in the center. The right grip plate is also checkered with an annulus in the center, MELIOR on the top, BELGIUM on the bottom, and 6.35 in the center.
Precise dating is beyond my means, but a 1927 catalogue of the French company Verney-Carron lists only the larger model, specified by its length of 120mm, whereas the 1932 German WUM catalogue lists both guns. (The smaller gun sold for $7.50, whereas the larger New Model sold for $6.00.)

Liege Shotgun Serial Numbers Lookup

New Model Melior - Type III - Components

According to Hogg & Weeks the Robar Company went into receivership and was liquidated in 1958. I do not know exactly how long the New Model Melior pistols were manufactured.
Field Stripping the New Model Melior
  1. Check that the magazine and chamber are both empty.
  2. Pull the trigger to uncock the striker.
  3. Lift the lever on the dovetailed locking piece and push it out either side of the gun.
  4. Draw the slide forward off the frame.
*If you can provide photographs, serial number and model information, or any other information about the Melior pistols, please write to me at [email protected].