Here is a Nicholson Half Round Bastard Cut file that is 12 1/2" long. This file is in good used condition with apparent little use. There is no damage that I can find and there are not any initials engraved on this tool.
The approximate dimensions are:

1) Overall length                                              12 1/2"
2) Width at the tip                                                5/8"
3) Width at end by the brand                               7/8"
4) Minimum length of teeth at end by brand     9 1/4"
5) Maximum length of teeth at end by brand    9 3/8"


The shipping weight is 8 ounces. I will be sending this file in a Priority Mail Flat Rate Envelope.