Alan Horowitz wrote:
a colleague has a little gizmo which grabs onto small lamps used in
pushbutton indicators and switches, etc. He doesn't recall where he
got it.

it is marked: MICROSWITCH 15PA19 LAMP CHANGER


where to buy this, or similar?

That tool is also known as a Neuses N-553A. Available from Neuses via
Google. Works for 327, 328 and similar bulbs.

W4ZCB