Congrats on the sale of the 22/410. Sounds like a dandy. IMHO, the brazed barrels with grooved rifle barrel are the best of the breed. If you decide to part with the following, please let me know. The 22M/20 with brazed barrels is my favorite. Had one (24E-DL), sold it, regret it.
I have the same brushed chrome finished receiver 24DL in 22M/20 that was purchased in the early 1960 via Montgomery Wards mail order.