If I'm remember correctly here...
I'm sure I've read here in the group, that WCI made the Frigidaire 1-18 washer that looked the same as the GM Frigidaire 1-18 washer, with the same control panel look. And if I'm remembering right, the only way you can tell the difference is that;
On the WCI Frigidaire:
The front panel is smooth
On the GM Frigidaire:
There is a line across the front panel, that lined-up/matched with the GM Frigidaire dryer door.
And another difference between the GM & WCI was the (now forgive my wording here because I don't know the proper terms but) the finger indentation for the lid opening.
I can't remember right now which is which but, one had the finger indentation only part way across the opening of the lid, from the front side of the machine.
And the other had the finger indentation across the whole opening of the lid.
I really hope you can understand ebay I'm trying to say. But I have seen comparison pictures showing the difference between both maker's Frigidaire 1-18 models.