From ISMACS - and excerpt from Singer records
[TABLE]
[TR]
[TD="colspan: 4, align: center"]AVERAGE COST (cash paid) FOR ELECTRIC PORTABLE[/TD]
[/TR]
[TR]
[TD]MODELS[/TD]
[TD]128[/TD]
[TD]99[/TD]
[TD]221-1[/TD]
[/TR]
[TR]
[TD]1922 - 1934[/TD]
[TD]$59.50[/TD]
[TD]$77.00[/TD]
[TD]**[/TD]
[/TR]
[TR]
[TD]1934 - 1941[/TD]
[TD]$ 59.50[/TD]
[TD]$85.00[/TD]
[TD]$88.00[/TD]
[/TR]
[TR]
[TD]1946 - 1946[/TD]
[TD]$69.50[/TD]
[TD]$95.00[/TD]
[TD]$105.00
[/TD]
[/TR]
[/TABLE]
This record is from 1946 -so no info after that date.
I watch on eBay - and there seems to be a lot of FW listed now, the prices started to drop about last March, and they never went back up.