Primary Color Bowls

Can you guess how much a set of Pyrex Primary Color Bowls sold for in April of 1950?

2 PYREX PRIMARY COLOR MIXING BOWLS
2 PYREX PRIMARY COLOR MIXING BOWLS
Paypal   US $19.99
Pyrex Primary Color Clear Bottom Yellow Blue Bowls
Pyrex Primary Color Clear Bottom Yellow Blue Bowls
Paypal   US $14.99
3 Pyrex Primary Color Nesting Bowls Vintage Older Marks
3 Pyrex Primary Color Nesting Bowls Vintage Older Marks
Paypal   US $12.99
Pyrex primary color mixing bowls early set VGC
Pyrex primary color mixing bowls early set VGC
Paypal   US $19.99
VINTAGE PYREX PRIMARY COLOR NESTING MIXING BOWLS
VINTAGE PYREX PRIMARY COLOR NESTING MIXING BOWLS
Paypal   US $19.99
PYREX NESTING BOWLS PRIMARY COLOR 6 JELLO BOWLS AN MORE
PYREX NESTING BOWLS PRIMARY COLOR 6 JELLO BOWLS AN MORE
Paypal   US $35.00
VINTAGE PYREX PRIMARY COLOR MIXING BOWLS
VINTAGE PYREX PRIMARY COLOR MIXING BOWLS
Paypal   US $29.99
VINTAGE 4 PYREX PRIMARY COLOR MIXING NESTING BOWLS SET
VINTAGE 4 PYREX PRIMARY COLOR MIXING NESTING BOWLS SET
Paypal   US $49.99
Vintage Set of 4 Primary Color Pyrex Mixing Bowls
Vintage Set of 4 Primary Color Pyrex Mixing Bowls
Paypal   US $9.99
Vintage Primary Color Pyrex Nesting Bowls Casserole
Vintage Primary Color Pyrex Nesting Bowls Casserole
Paypal   US $54.95
Vintage Pyrex primary color mixing bowls
Vintage Pyrex primary color mixing bowls
Paypal   US $45.00
4 Pc VINTAGE PYREX PRIMARY COLOR NESTING MIXING BOWLS
4 Pc VINTAGE PYREX PRIMARY COLOR NESTING MIXING BOWLS
Paypal   US $86.00