Yoshiya (1950 - 1970) also known as Kobe Yoko Ltd. was a major Japanese toy maker from the post war period.

Yoshiya -known by their mark KO- specialised in mostly mechanical or wind-up toys featuring fanciful designs, but they are also known for its extensive line of Robby the Robot knockoff toys.

KO toys

Ko on Amazon

Ko value and price guide

What's your 'Ko' worth? Here are some recently sold items (USA).

Picture Title Date Sold for
Extremely Rare Japan Tin Litho Rocket Extremely Rare Japan Tin Litho Rocket 09/2019 $800.00
Planet Robot Yoshiya Robby Robot Nomura Planet Robot Yoshiya Robby Robot Nomura 09/2019 $500.00
Yoshiya Japan Motorcycle Ice Cream Yoshiya Japan Motorcycle Ice Cream 09/2019 $495.00
1959 Tin Friction Japanese Robot By 1959 Tin Friction Japanese Robot By 08/2019 $335.00
Rare Yoshiya Robot Space Dog Wind Up Tin Rare Yoshiya Robot Space Dog Wind Up Tin 10/2019 $299.99

See all sold items for more prices.

Ko forum

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Comments (2)
Brian - March 8, 2019
I have a Singing Warbler in the original box. Warbler is in great shape, box is torn in one corner. Does anyone know what year this was made and the value
Val - August 24, 2010
I have a tin toy with KO made in japan it is a whale with pioneer on the side bubble eyes and painted like space america theme it has a pull up lever that allows whale to move after it is wound up the mouth opens up and down and it used to have sparks inside which have since wore out just wondering if any one could tell me about it i think it is about 1960 as i played with it when i was little just curious about it.