Hello List,  I have a gutted Duo-Art Weber with a cast iron keybed.
For the life of me I can not figure out how the lyre attaches to it.
Is there supposed to be a board under the cast iron base to attach
the lyre?

It is not flush and the una corda lever crosses, so I can not attach
a board under there, either.  I see some iron lips that come out of
the cast iron, about 18 inches apart with a screw in the center.

If anyone has a Duo-Art with a cast iron keybed please give me some
help.  A digital picture attachment to me privately would be ideal.

Thanks.
Eliot Lee