Hello,
This is a gas display from DISPLAY'S INC. compatible with the BABCOCK DI04702
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Full PDF document can be retrieved here : https://4donline.ihs.com/images/VipMasterIC/IC/BABC/BABCS00045/BABCS00045-1.pdf?hkey=EF798316E3902B6ED9A73243A3159BB0
And as the doc say : "Gas-plasma display designed for coin-op pinball games."
Can be used on Williams machines.