This is what the jack looks like from the front, which has a short snout down low where the handle attaches to raise or lower the jack. The base is rectangular (not square) and is raised slightly on the front and rear ends like a Norwegian toboggan:

The base has a small hole at the center rear of the jack. The rear end is stamped "W" on one side and "1-1/2" on the other side:

Here is another view of the rear end with its centered hole and stampings. Some jacks were stamped with "W" and "1-1/2" on the top of their base while others were so stamped on the bottom of their base (for those who store their jacks upside down):

The correct three-piece folding jack handle looks like this one:

The jack was manufactured by Walker Mfg. Co. and was used from 1943 to 1966, so some should still be around. It is marked on the top of the rectangular (not square) base with "W" and "1-1/2". It was called Ajax Auto Parts No. 2181 during WW II. It was later called Walker MFG. CO. # 2181-AB and # 280003. It had two more part numbers…643926 & 929500 and two Federal Stock numbers, 41-J-74-507 and 5120-708-3365.
It is NOT the similar looking jack with a square base that is marked 303 or 313 or 41-J-66.
If you have this Walker jack or its 3-piece handle that you will sell, please contact me by PM or email with price and shipping charge to Denver, CO 80207. Delivery of either or both next month to Tower Park will cause me to buy you one or two sodas or adult beverages of your choice.
[Edited 3-09-12 and again on 3-14-12 to correct description and photo of jack handle]









