Thistlebase
Invisible Wind Pennant
Ralph Kelley from the Sacramento Fleet describes a homemade wind pennant designed to help sailors see their masthead better. The device is fabricated from piano wire and features an oversized design with acetate construction.
View original on Google Drive · page 6
The scanned issue opens in Google Drive; turn to page 6.
This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.