Tri-Circle 265/50 key blanks needed

[escapenrv]

I'm trying to make a key for this padlock. Does anyone know what key blank will work? Some European suppliers show the key to be 5/16" tall and shoulder to tip is 1-1/16".
Some also list RH and LH keys. Never seen this before. I think it must refer to Std. and Reverse profiles but I'm not sure.
Thanks for the help.
Steve

[bitbuster]

any chance a Master blank will fit?

[escapenrv]

No I don't think so. At least none that I have. I did look in the Ilco catalog and I think it takes a ILCO TL11 blank. I will get by a local locksmith shop or two next week to see if I can find something that will fit.
The Ilco book also shows a TL11R blank. I guess this is the RH or LH key from the European catalog.
Thanks for the reply......
Steve