A very large percentage of H&R production would be C&R. Anything made before 1963 would be and the original H&R went out of business in 1986.
All their old breaktops would be C&R if not antiques, as would all their old solid frame revolvers, and their auto pistols.
As to compliance with the law, the burden is on the shipper/seller, not the buyer, to be sure the gun is C&R and that the recipient/buyer is appropriately licensed or, if not, to transfer to a licensed dealer. Unless you are directly concerned (i.e., you have received a non-C&R item on your 03 license), I can't see any point in making a big deal out of it.