Trying to make a timeline about the Fulton adjustable wrenches in my collection of Fulton tools, continuing into Dunlap, but stopping before the Merit and Craftsman names. Many thanks to Alloy Artifacts (AA) for information about some of these tools.
Starting with the Fulton I previously posted, it was made by Diamond Calk and Horseshoe probably in the 1920’s before the country-of-origin was required in 1930. This one is simply stamped with the name “FULTON” and a few other cast-in numbers which indicate it was made by Diamond.
All the wrenches following have the Country-of-Origin, which became law in 1930.
Jumping over to Germany, we have a company named ZEREM. Apparently founded by Richard Eugen Zerver, the factory was in Remscheid. The company operated for over 150 years and may have been related to the HAZET company founded by other Zerver’s. (Looking for more information).
The top two wrenches were made by ZEREM. The top one has the model number 360, ZEREM inside a diamond, ½ X 8”, and around the hang hole “Made in Germany”. On the other side it is marked with “Drop – Forged - Steel” with a Five-Pointed star at each end. These stars, along with the Made-in-Germany markings at the hang hole, are a good indication of ZEREM manufacture.
The second wrench does not have the ZEREM marking or model number, but otherwise is the same as the other one but in a smaller size of 3/8 X 6”. It also has the two stars and the Made-in-Germany at the hang hole.
The next three wrenches are all marked with the FULTON name inside an oval. Other than the size markings, it matches the ZEREM wrench above. They also have the two stars and the Made-in-Germany at the hang hole.
The bottom wrench changed the FULTON name to DUNLAP but also matches the ZEREM above. It also has the two stars and the Made-in-Germany at the hang hole. According to AA the name DUNLAP started to be used about 1939. Note: WWII started Sept 1939 and lasted until 1945. Doubtful ZEREM was exporting to Sears after the war started.
Sears probably had to switch suppliers and got the J.P DANIELSON Company to stamp their “BET’R-GRIP” adjustable with the DUNLOP name. The wrench below has the DUNLAP stamped with a 312.1 code below it with all other markings cast. There is also a T-9-0 code at the hang hole. This may indicate a 1940 date of manufacture. AA indicates that they also supplied wrenches for the MERIT and CRAFTSMAN lines, but this wrench would pre-date them. This wrench also has a broached hang hole, which was discontinued by 1948.
The following wrench has the following cast in the handle: 6”, DUNLAP, Dependable Quality, and a Y inside a circle. On the back it has 6 in, Forged in USA. The Y inside a circle indicates it was made by McKaig-Hatch. According to AA this was probably made in the 1950’s.
The last wrench is marked with “DUNLAP” inside an oval, Chrome Alloy Steel, 8” with Full Drop Forged on the back. Also on the back by the hang hole is JAPAN. According to AA this was a trial order placed by Sears in 1962 and imported by the Fuller Orient Corporation. The design indicates this wrench was probably made by the Toho Koki Company for them.