Hale telescope

The World Book Encyclopedia.  Chicago:
Field Enterprises Educational Corporation, 1971.

Mount Wilson telescope

Michael Dempsey & Joan Pick.  The Majesty of the Heavens.
Foundations of Science Library.  Greystone Press, 1966.

In keeping with today's solar eclipse.

Bultaco Alpina

Model 187

Sidecar Sunday

Hemming a handkerchief, 1901

Happy Hours in Story Land.  New York:  McLoughlin Bros., 1901.

How kids spent their leisure time before smart phones.

From the Online Etymology Dictionary:

handkerchief (n.) 1520s, from hand + kerchief, originally "cloth for covering the head," but since Middle English used generally as "piece of cloth used about the person." A curious confluence of words for "hand" and "head." By-form handkercher was in use 16c.-19c. A dropped handkerchief as a token of flirtation or courtship is attested by mid-18c.

I'm not up on contemporary courtship etiquette, but is a dropped cellphone today's token of flirtation?

Wright Cyclone engine in full swing

Movie Lot to Beachhead.  The Motion Picture Goes to War and Prepares for the Future.
By the Editors of Look.  Doubleday, Doran & Co., Inc., 1945.

I wouldn't have wanted to be the photographer!

Racing the 20th Century Limited, 1925

Cary Hoge Mead, Wings over the World The life of George Jackson Mead, The Swannet Press, 1971

NEW YORK, May 26 [1925] (A. P.) Gar Wood, driving his motor speed boat Baby Gar IV, today beat the time of the crack 20th Century Limited between Albany and New York City.

Gar Wood, who was in the boat with his brother George, said the craft's times for the journey was 2 hours 58 minutes and 20 seconds. The official time of arrival was given out as 8:50:20.

Wood's time between the railroad bridge at Albany and the Columbia Yacht Club at 86th St., Manhattan, was given out by the official observer in the coat as 2 hours, 58 minutes and 20 seconds. The 20th Century's official time between Albany Station and the Grand Central Terminal is 3 hours and 10 minutes.

Richard F. Hoyt, who stole a march to Wood by sending his speed boat, the Teaser, over the course, racing against time from Manhattan to Albany last Wednesday, covered the same distance n 2h 40m.

The day after the Teaser's performance, Wood offered to bet Hoyt $25,000 "or any other sporty amount" that either of his boats could defeat the Teaser over the same course.

Hoyt did not accept the challenge.

http://www.lesliefield.com/other_history/1925_racing_the_twentieth_century_limited_gar_wood_beats.htm

According to Google maps, driving this route today (using I-87) would take 2 hrs 31 minutes.

Coast Guard water

Types of Screws

Funk & Wagnalls New Practical Standard Dictionary.  Britannica World Language Edition.  1946, 1957.

Since this 1957 edition, the term "skein screw" has fallen out of usage.  I don't know what exactly it was designed for, other than being a very coarse-threaded lag bolt.  Interesting also that this diagram included a "saw screw", used to hold the wooden handles on hand saws.  Another largely vanished piece of hardware.

Something to sing about: In my bark canoe

From John W. Beattie, Josephine Woverton, Grace V. Wilson & Howard Hinga.  The Canadian Singer.  Book Six.  Toronto:  W.J. Gage Ltd., 1947.