These dishes are used as side dishes. There are various names for them. I've seen them called Clam dishes, Oyster Dishes, Mother of Pearl dishes and Abalone dishes.
I purchased them at an estate sale, so there was no one with knowledge as to why there are 5. I assume that at one time they were a set of six but only 5 remain. The little sign standing beside them said "Set of 5 side dishes. 1940s to 1950s with Made in Japan stickers". You can use them as a set of 4 and hold on to the extra dish in case one of the 4 get broken.
They range in size from 6.25 inches long by 3.75 inches wide, to 7 inches long by 3.75 inches wide.
The 5 measure roughly:
6.25 x 3.75
6.5 x 3.5
6.5 x 3.75
6.5 x 3.75
7 x 3.75
The condition is excellent with no breakage. Plus, examining them closely, they appear to have never been used. Also, each dish has a small sticker on the back that says "Made in Japan" and looking at all 5 stickers, I see no evidence of water damage, meaning I don't think they ever had to be cleaned.
Buyer to pay $7.95 USPS Priority Mail shipping charges. Shipping is from Nevada.
All items in my listings come from either estate or garage sales. I do not know if they came from homes where smoking or pets were present. All items are sold in the same condition as when I received them.
SPECIAL NOTE ABOUT POSSIBLE PARTIAL REFUND OF SHIPPING CHARGES:
Every January the U.S. Postal Service increases the shipping prices. This year's increase is beyond any we've seen in previous years. Before the 2019 increase, shipping costs were based on weight. A package weighing less than one pound cost the same amount regardless if it was mailed 2 miles away, or from coast to coast. Packages weighing over 1 pound were priced by what the destination zipcode was.
Now, the postal service has divided the United States in to 8 zones and all packages are charged by weight, size, and destination zone. Now it is not possible to state a shipping cost and have it be valid regardless if the package is traveling 2 miles or all the way to the east coast. I am in Nevada and probably 90% of the packages I mail go eastward, and a majority of them go all the way to the east coast.
To complicate this even further, Google will not show items for sale unless they have a designated cost, or unless the seller uses calculated shipping. My web host is not equipped to figure calculated shipping, so I have to quote a shipping charge using the east coast as the final destination and then refund over payments. When I return the overage, I usually do so by including cash inside the package when it's shipped. My feedback page will show verification that I do return overpayments.
As a buyer, there are two choices. If you over pay on the shipping charges, I refund an appropriate amount to cover the over payment OR if you'd like to send me a message stating your zip code and the item you are interested in, I can quote you an exact shipping charge and send you a custom invoice with an accurate shipping charge.
About Combined Shipping:
I do combine shipping on multiple items purchased, but as stated above, my web host is not set up to calculate multiple item shipping costs. At checkout, you will be charged full shipping price on each item purchased and I will refund the appropriate amount of over payment. If you are uncomfortable with that, send me a message with your zip code and stating which items you'll be purchasing and I'll calculate the correct combined shipping charges and send you a custom invoice.
Due to claims that merchandise is not being received at various international countries (although Customs tracking verifies the delivery), I will no longer be able to process international orders unless payment is made with U.S. currency, including conversion fees. Orders will be processed after funds have cleared a U.S. bank. PAYPAL WILL NOT BE ACCEPTED FOR INTERNATIONAL PURCHASES. Seller reserves the right to void any international transactions where contact has not been made prior to purchasing.