by watlingboy » Sat Oct 19, 2013 2:54 pm
Tony,
Just like the detail that is reproduced on the front of the casting, the back would have the same detail and the part numbers would be there. You could ask one of the collectors who has a foreign coin top to measure the width and the reproduction will be approximately 3/16 smaller but many of the people who recast the castings built them up with material such as foundry wax to allow for shrinkage but then you had to mill out the casting to make it fit the case. You could remove the top casting and look, 4 carraige bolts. On the Rol-A-Top, Watling quit putting serial numbers on the top casting sometime in 1938. I've never looked at Treasury's to see if they all have serial numbers but it is odd that machines with serial numbers above and below yours, both have serial numbers. Are you sure the number has not been ground out?
Watlingboy