How old is this Lyon and healy piano serial number 26662?

I have one that the serial number is close and it was built in 1833. Not at home so I don't have exact serial #, but this seems close.

Do you have any idea how much it is worth or any on in the market for one? Mine is a upright baby grand with ivory keys. Signed and dated on back.

Thanks for any info.

Vicki