The stickers you are looking for were sold by Ace R/C, now Ace Hobby
Distributors http://www.acehobby.com/acehobby/ However, believe the
stickers were discontinued, along with a lot of other handy Ace
products, when Ace R/C was aquired by the present owners.
Your best bet is to go with the other commercial offerings, as linked
in this topic thread, or compose your own on a computer. If an ink
jet or laser printer is used, and can be heat-laminated, the resulting
labels are very durable. Fading can be minimized by facing the
frequency board away from the sun, or building a cover over the board
to shade it and protect it from the weather. Also, avoid the color
red, which seems to fade quickly.
D. Anderson
Montana