The underside of one handle is stamped with an "AM" code, possibly followed by a number, but the marking is not clear enough to read. The original finish is was chrome or nickel plating, but most has been lost due to wear and rust. In the late 1930s the pliers were briefly discontinued, then returned in an 8.5 inch size. The overall length is 8.0 inches, and the finish is plain steel.
The top inset shows a side view of the pliers, illustrating the "Nested Diamonds" gripping pattern on the handles. 191 shows a later pair of Craftsman 8 inch slip-joint angle-nose gripping pliers, stamped with a transitional form of the double-line logo resembling "== U. One quirk of the Button's pliers is that they were never offered in alloy steel and therefore did not carry the "Vanadium" marking. 192A shows an early pair of Craftsman 5781-8 8 inch Button's Pattern combination pliers, stamped with the "5781-8" model number across the pivot, followed by the Craftsman block logo and "U. The top inset shows a side view of the pliers, illustrating the diamond checkered gripping pattern on the handles.
A review of the catalogs shows that this size was offered as model 4488 in the late 1930s up through 1941, but had been discontinued by 1942. 193 shows a pair of Craftsman 8.5 inch Button's Pattern combination pliers, stamped with the Craftsman underline logo near the pivot, and with an "AM9" code on the underside of one handle.
The overall length is 8.8 inches, and the finish is plain steel.
The middle inset shows a close-up of the jaw construction. The presence of the model number on these pliers is somewhat unusual, but is very helpful in estimating the production date.
Note that the center slot is oriented at a right angle to the face of the pliers, in contrast to the slightly angled slot used by most makers of Button's pliers, including the original J. A quick check of our catalog reviews found that the 5781 model was used from late 1930 until early 1935, after which it was succeeded by the 4488 model number.
The 1938 Craftsman tool catalog has very clear illustrations of the "Nested Diamonds" pattern, and later Craftsman tool catalogs show that this pattern remained in use through the 1950s, and into the 1960s for at least some models.The top inset shows a side view of the pliers, illustrating the "Nested Diamonds" gripping pattern on the handles.The small inset shows a close-up of the "41AM" code stamped on the underside of one handle.During the 1930s and 1940s these pliers were available only in an 8 inch size.
The design of these pliers resembles the Wilde Wrench Pliers shown on another page. 189 shows a pair of Craftsman Vanadium 8 inch slip-joint angle-nose gripping pliers, stamped "Vanadium" below the Craftsman underline logo, and with a "9AM" code on the underside of one handle (see inset).Craftsman pliers were first offered in the 1930 (Fall and Winter) catalog in six basic styles, with some styles available in several popular sizes.