Ithaca NID 410 Grade 1, nice find, I think?

[joe breda]

Ithaca NID 410 Grade 1, nice find, I think ?
I been told only 64 Grade 1’s were ever made ?
Circa 1926, still all original. It does have a center bead and has been on there for a long time. It’s very aged. Not sure if it original or not ?
May be a collector gun ? All original, no sign of any restoration.
I like the Grade 1 engraving better than the 2 or 3, any comments?
Reminds me a little of the LC Ideal Grade engraving ?
Standard double trigger extractor gun. Choke 4&4 26” tubes, very nice trigger pulls, I’d say 3-1/2 & 4.
Called Ithaca and the said there are no more records available.
Anyone know where to find any records on them besides manufacturing date ?
Who in the country is and expert on the Ithaca NID’s?
Any help would be appreciated.
Cheers JoeB