Hello Reg,
Coffee time for me, quiet innit?
I think that your oldun is a Hungarian Kolbanyi IV monoplane of 1912
I think that it had better be an Open House if correct, as I have to get away sharp tonight at five pm, (that's 9am on the US West Coast for what it's worth) Dunno what that'e all about, I suppose it's someone's quirky way of showing that PST is eight hours behind GMT (UT) but why they want to is a mystery!!