Postcard of 100 Inch Telescope Mt. Wilson Observatory

This is a very early 1900s sepia real photo postcard of the famous 100-inch telescope at Mt. Wilson Observatory in California.

It is in excellent unsent condition with fairly crisp corners and no yellowing. It is 3 3/8" by 5 3/8". Manufacturer and photographer unstated.

We believe this is the first use of this particular photo on a postcard. This photo was used later by E C Knopp Co. to make a linen postcard.

(Inv Codes: RP 3011-L26)

Item ID: 170


Most items have shipping method choices. Check with us before purchasing items with different shipping methods so we can evaluate your shipping costs.

$15 USD

Add to Wish List

20th Century Lost & Found


Mike and Austin, La Grande, OR   

An eclectic assortment of collectibles, art, antiques, and estate sale finds!

Exclusive Ruby Lane Member since 2009

We have added many new items, ideal for holiday gift-giving!

Shipping/Handling*:Free
Insurance:$5.00 USD

Price for shipping to USA change location
*USPS First-Class Mail Parcel


Estimate shipping to a different location: