Online Estate Sales & Auctions for SiblingPower

Adorable and rare! This authentic circa-1917 Whitney Made Christmas postcard features “Nimble Nick” — the cutest baby Santa triumphantly perched atop a beautifully decorated tree — with the cheerful greeting “I WISH YOU A TIP-TOP CHRISTMAS”! Fully u...

Charming early 1900s Easter greeting postcard published by The Gibson Art Company, Cincinnati. Features a delightful full-color scene of a Dutch girl with egg basket and a Dutch boy in traditional attire walking with two white ducks past a windmill u...

Gorgeous, highly collectible early 20th-century Easter greeting postcard featuring the iconic artwork of Ellen H. Clapsaddle (one of the most famous postcard illustrators of the Golden Age). This charming card shows a sweet little boy in a blue suit...

Beautifully preserved 1907–1908 Rotograph Co. (F 3000) Art Nouveau Easter greeting postcard featuring a striking brown hare in a scenic landscape with ornate decorative borders and the classic red “A PEACEFUL EASTER” greeting.Postally used and postma...

Charming Vintage Easter Treasure! This beautiful early 1900s (circa 1910–1915) Easter Greetings postcard, series 3119, features a detailed brown rabbit holding a white letter in its mouth, perfectly framed in a vibrant red egg against green foliage....

Step back into the Golden Age of Postcards with this gorgeous early 20th-century Easter greeting card! Published by A.M. Schmidt & Co., Chicago (No. 403), this embossed beauty features two sweet winged cherubs perched on a vibrant bouquet of blue...

For your Easter or rabbit collection — a beautiful antique divided-back Easter postcard, circa 1907–1915, Series 3115. Vibrant illustration shows playful brown bunnies performing a magical “rabbit-out-of-the-hat” trick with bright red Easter eggs on...

Here’s a bright and happy St. Patrick’s Day treasure! This authentic 1909 copyrighted postcard features the beloved artwork of Ellen H. Clapsaddle, one of the most prolific and collectible illustrators of the Golden Age. A rosy-cheeked little girl in...

Capture a genuine piece of early 20th-century Americana! This beautiful 1910 Thanksgiving postcard features a magnificent full-color turkey in all its glory, surrounded by autumn bounty (pumpkin, grapes, corn, apples) and a golden circular farm lands...

Up for bids in our Scottsdale online-only estate auction: a true treasure from the Golden Age of Postcards!This 1908 Chas. Rose “Home Sweet Home” postcard (Series II/11) features a stunning full-color scene of a lady by the fireside with two adorable...

Stunning vintage New Year postcard featuring two joyful cherubs in colorful togas hammering a golden bell atop a grand clock striking midnight! Richly embossed with a shimmering silver metallic background, surrounded by roses and shamrocks. Bold red ...

Vintage collectors — this one is a beauty! Circa 1908 German-made New Year’s postcard featuring an elegantly dressed lady in a flowing pink gown meeting a charming gnome who’s offering her a sparkling four-leaf clover for luck. Heavy embossing, metal...

Stunning early 1900s New Year’s greeting postcard featuring a bold red “1 JANUARY” calendar shield, lush raised pink roses, blue forget-me-nots, purple violets, and shimmering gold foil accents. Elegant script reads “A Happy New Year.” Numbered 503 i...

Adorable early 1900s “Baby New Year” postcard — a chubby cherub baby is turning the January 1 calendar page with the classic greeting “I wish you a very Prosperous New Year.” Handwritten “1st B-day” and “Aunt Ramona Squirt” notes on the front add won...

Beautifully preserved 1911 New Year’s greeting postcard from the desirable “New Year Series” No. 307, printed in Germany (the gold standard for early 20th-century postcards). Front features a sweet young girl in a pink ruffled dress carrying armfuls...

Add a touch of authentic early-20th-century holiday magic to your collection or décor! This charming vintage Christmas postcard, published by J.P. N.Y. circa 1920s, features a delightful embossed and glitter-accented illustration of a young child bun...