Littlefuse makes green resistor-shaped fuses. Their logo is an 'L'
wrapped under an 'F' so their 'LF' could look like 'IE' on a worn part.

http://www.littelfuse.com/data/en/Da...se_251_253.pdf

Thanks, Kevin.

They way Littelfuse uses a stylized "LF", it could easily be mistaken for
"1E" or "lE".

Now to get one...

Thanks again,
Dave