I'm gonna have some fun with this in analytical sleuth mode...no, not that.
Well, the first 77 (1955) is blueish gray but it has a foot paddle switch like a 44/55/66 tub Lewyt, no 3rd caster wheel or tool rack posts, so it's not a 77.
UNLESS THE TOOL CADDY HAS A POCKET BIN for a floor nozzle AND IS OBVIOUSLY A CLIP/SNAP ON ACCESSORY in which case...go get it IMMEDIATELY!~!!
The 88 (1955-56) is green with a silver base and lid.
The 90 )1957) is all green with a white lid. Known as The Golden Lewyt.
The 93 is all green. It has a simple top handle that looks like a kitchen cupboard handle, and no Power Dial on the lid.
Lower tier model?
The 95 is all gray blue with the same simple handle and no Dial.
The 97 (1957-58) is all bright blue with a silvergray lid and the Power Dial returns.
The 105 (1959) is back to all silverblue with a brighter blue lid.
No picture of the 115 (1960)
The 120 (1961) is silver gray with a darker gray base and introduced the Power Window in the lid for the see-thru Speed Sacs. It has plain aluminum wands with no rubber collars or rubber hand grip on the hose.
Then we have the 3 Electronic models with the pn:
The 107 (1957) has a sky blue lid and body with a dark gray base. The matching blue PN is a 115 VAC unit with a long cord clipped to the hose, that plugs into the base under the switch.
The 111 (1959) is a less bright all over blue with a silver white lid, matching blue PN and has the electric hose and wands that carry low voltage to the brush motor. This is the one that could shock the user.
Finally, the 121 (1960) is again pale blue with a silver lid and silver PN. It has very decorative and striking gold anodizing around the hose inlet plate, and on the raised cast handle frame surrounding the Power Window. The lid is modified with a stamped raised panel for the Power Dial that meets up with the inlet plate, like a hood meeting a car's upright radiator.
I don't know this for a fact but it seems the red plastic toggle switch was easily broken off and many switches were replaced with metal toggles?
All this is gleaned and saved from Doug Smith's former site. I'm sure he can fill in the blanks I have missed.
My 120:[this post was last edited: 3/8/2011-23:04]
