FIRHE joined by FIRMY

I happened to stumble upon yet another 19mm screw-in filter for my Elmar 50/3.5 LTM lens (more information about these filters here). The ones I already have are the somewhat easier to find FIRHE filters (#1 yellow) - this is the more elusive FIRMY filter (#2 yellow).

I've been using the FIRHE filter a lot and am happy to now have the option of a darker yellow filter for when I need it.
From a collection perspective - that's two down and seven more to go...