Help Identifying Cachet Designer

The South Bend, Peru, and Indianapolis route was the second Highway Post Office route in the U.S., so there is a nice variety of cachets available. Can anyone help me identify the cachet designer for the five I've attached? Thanks much.

https://goscf.com/t/67019

51Studebaker just started a very appropriate new item on Stampsmarter about the HPO's. Please check the above link and maybe contact Don,

Peter

Sorry, I do not know the names of the designers of those you listed. But you are correct about there being a number of nice cachets for this route.






Don

Thanks, Don. I have 9 very nice different ones, but don't know all the cachet designers.
Yet.

On Don's post: the top two images were designed by Ludwig W. Staehle and produced by Fleetwood. My source: "The Cachet Catalog of Staehle & Knapp" by M. Douglas Parks, ©1981, First Printing, p 182.
The second two should be identified on the backs of the envelopes. They are general purpose patriotic cachets.
Respectfully submitted:
jrc531

Thanks. Staehle was apparently known as the "King of Cachets."

I know the patriotic cachets are by Jacque Minkus, and I believe there are a dozen (or more) different ones that he did. He was elected into the American Philatelic Society Hall of Fame in 1997.

The one on my original post with the green bus has some initials at the bottom: "C. S. K. C., MO."
I can interpret the Kansas City, Missouri part, but don't know who (or what) "C. S." is.

I agree with the L.C. MO.on your cover as being Kansas City, Missouri. The C. S., I believe to be Collectors Surplus,a trade name used by E. W. Haworth producer of the PentArts cachet line.

Thanks, Jarnick. Now if I can just figure out the other designers, I'll be a happy camper.

Well, I believe I have all five of my cachets identified, although my chief source wasn't 100% positive about three of them, so I've used the word "attributed."

Here is the order from my original post.

Cachet design attributed to Ed Mertz of Indianapolis, who was recognized by the Cachet Director's Council as RCD (Registered Cachet Director) 314.

Cachet design by Harry Ioor, proprietor of Circle Stamp & Coin in Indianapolis.

Cachet design attributed to George Austed of San Francisco, California.

Cachet by Collectors Surplus (PentArts) of Kansas City, Missouri.

Cachet design attributed to Fidelity Stamp and Coin, Los Angeles, California.

Posted 03/26/2019 12:08 pm, by "healthy"
"I know the patriotic cachets are by Jacque Minkus, and I believe there are a dozen (or more) different ones that he did."

Jacques Minkus produced 52 different cachets in five sets between 1940 and 1943. To help everyone identify them all, I created a page displaying them all in one place. They are shown in the Minkus Catalog number order assigned by Richard A. Monty. Each design notes the 2nd ed. Patriotic Catalog number assigned by Lawrence Sherman.

"Jacques Minkus FDC and Patriotic Cachet Catalog", 1977, by Richard A. Monty
"United States Patriotic Envelopes of World War II, 2nd ed.", 2006, by Lawrence Sherman

One page displays Minkus cachets serviced as First Day Covers in Sherman number order:
https://www.folklib.net/fdc/makers/...s-xref.shtml

From the Identifier page in Monty number order:
https://www.folklib.net/fdc/makers/minkus/catalog/

Doug Henkle, AFDCS LM #137