Aside from the actual differences in the guns, one being retailed by Kirby Hoyt vs the other being retailed by G&H probably accounts for some of the variation. The rest is likely condition and quality. Kirby had a very nice pair of plain Hussey SLE's for a while that were very fairly priced as well, may serve as a better comp. The second is still available.

https://www.gunsinternational.com/guns-f...un_id=101204197