Looks pretty honest to me. Probably better than 90% of them you'll find. I suspect the barrels may have been reblued some time ago.
That gun is a No. 40 Featherweight Grade.
No. 40 Featherweight Grade, Catalogue No. 307.jpg
The grades in the U.S. Tobin catalogs I have are No. 20 Standard Grade, No. 30 Expert Grade, No. 40 Featherweight Grade, No. 45 Premium Grade, No. 21 Trap Grade, No. 50 Special Pigeon Grade, No. 55 Model Grade and No. 60 Model Grade. Unfortunately, about half of the Tobins one encounters don't match any of the pictures in the catalogues.
Threaded Mode