Silly HP-41C Question

[smp]

Here's another silly HP-41 programming question:

Some available programs I see have a special prompt character they use that looks like a capital T but rotated 90 degrees counterclockwise so that it appears like a vertical line with a horizontal line pointing to the right from the middle of it.

Can anyone tell me how I get that character? I've hunted for it, but I cannot find it as an alpha, or shifted alpha character.

Thanks in advance...
smp