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Treasure Island Yacht Club (U.S.)

California

image by Rob Raeside, 1 July 2019

Description of the flag
Fiftieth Anniversary flag
Vertical burgee
Treasure Island sailing center

See also:

Description of the flag

Estb: 1966. Location: 300 Clipper Cove Way, San Francisco.
Burgee: Pennant circa 4:6 (web image). Blue field charges with the black letters TI on a horizontal 1 unit-wide yellow band.
Source: accessed 26 June 2019,
https://en-gb.facebook.com/pg/treasureislandyachtclub/posts/
Peter Edwards, 30 June 2019

The TIYC home page gives us:

Treasure Island Sailing Activity (TISA) – Established in July 1965.
The TIYC was formed as the Treasure Island Sailing Club in January, 1966 as a branch of the United States Naval Sailing Association.

“TI Club’s Burgee The Burgee of the Club is a pennant with a blue field and a gold horizontal stripe running from the hoist to the point, the gold stripe having a vertical [height] equal to one-fourth the vertical height of the hoist. The [ratio] of the hoist to the fly is two to three.” from the Masthead 1967

Start of 1978, the name was changed to Treasure Island Yacht Club, to include power boats.

In 1981, depictions of the burgee changed to a design that, when hung vertical, would include a T over I on the stripe.

By 1995, the burgee was pictured as having letters TI on the horizontal stripe.

Peter Hans van den Muijzenberg, 2 July 2019

Fiftieth Anniversary flag

image by Peter Hans van den Muijzenberg, 31 July 2022

For their 50 years anniversary 1966-2016, the TIYC had an Anniversary Burgee. Design by Jim Aberer (pictured on the TIYC home page).
Peter Hans van den Muijzenberg, 2 July 2019

The webpage provided a small burgee, designed by Jim Aberer, from which I created a slightly blown-up, simpler example. It's the club's regular burgee, but within the blueish fields 1966 respectively 2016, and in the yellow but behind the lettering the digits "50" in silver-ish.
Peter Hans van den Muijzenberg, 31 July 2022

Vertical burgee

image by Peter Hans van den Muijzenberg, 31 July 2022

After the "Treasure Island Sailing Activity" had become the "Treasure Island Yacht Club", they eventually tried to change their burgee so it would look better if read from the hoist down.

I tried to keep the image like club flag. That's why my vertical burgee has a Serif font, while the sketch of the real thing has a Sans font: The horizontal burgee has a Serif font and I didn't want to make it look too different.
Peter Hans van den Muijzenberg, 31 July 2022

Treasure Island sailing center

image by Peter Hans van den Muijzenberg, 31 July 2022

The Treasure Island sailing center provides access to sailing for everybody around San Francisco. It sounds like there is a high goal behind this, so I assume their burgee has some deep symbolic meaning.

They provide a nice image to borrow at https://www.tisailing.org.
Peter Hans van den Muijzenberg, 31 July 2022