Originally Posted by
greywuuf
Ok I went and looked at it and it baffles me, but I bought it anyway. going to pick it up friday.
here is is, some one tell me about it

The 103 is not common in my neck of the woods. Other than the information you already found, best bet is an owners manual which I saw listed in Bonanza if not found for free. The Vintage Singer group sounds like a good idea for some background history. Check the SN when you get it .
The industrial treadle has almost gone the way of the passenger pigeon in the US and complete bases are scarce.
Jon