I am in need of an early style grip cap for an early production Ithaca Knicerbocker (#40040X) measuring 1 7/32" x 1 19/32", Finished. There seem to be many available in smaller sizes as well as the newer, smooth style at Galazan's and the Dutchman. I would prefer to stay as close to the original as possible. Any suggestions?

Thanks in advance!!