Is this a strange button arrangement?

[Lappy]

This button layout is from an english Wheatstone concertina ( 4050).

Is it a peculiar one?  Thank you for your consideration.

 

[DickT]

Yup, that's strange! The left side seems normal (some of the sharps would be recognised as flats) but the right is weird.

[Lappy]

Thanks DickT! 
I forgot to mention that I copied the notes that were stamped on the brass “shoe” that holds each reed. 

[fred v]

There's your problem. Download a free tuner for your phone and see what the actual note sound is for each button.

[Lappy]

The front of the concertina is on the right side of my photo.

[Lappy]

11 hours ago, fred v said:

There's your problem. Download a free tuner for your phone and see what the actual note sound is for each button.

Thanks Fred! I checked all the notes with two chromatic tuners and they are what is shown in my photo.

[Don Taylor]

I stared at your image for a while trying to figure out what sort of concertina this was, then I realized it was an EC but not shown in the normal orientation.  This would be more like the usual way that that EC button layouts are shown:

As Dick says the LHS is OK apart from having a D where it should be G#.

 

The RHS makes no sense, it might need to be inverted in my version of your diagram but I can't tell which are the low notes and which are the high - which should be towards the top of the diagram.  Even so, the RHS looks nothing like an EC RHS.

 

I wonder if the RHS reeds are original and have all been swapped around for some reason?  It would help to know which octave the different notes  on the RHS are playing, your tuner app will tel you this.

 

Here is the usual layout for a treble EC - the notes on all columns are ascending towards the top of the diagram:

Edited June 14 by Don Taylor
typo

[Lappy]

Thank you kindly for your response Don! It is an English concertina made in 1852 (no. 4050).  My  diagram shows the rows in the horizontal playing orientation.

Edited June 14 by Lappy
incomplete details

[Lappy]

I apologize for leaving important details out of my photo. Here is the correct one:

 

[malcolm clapp]

I may be wrong, but I would suggest that it is likely the right hand reed pan is incorrectly positioned by 180 degrees. The reed pan should have a letter R and/or the 4050 number at the corner directly behind the badge cartouche on the face plate. The bellows frame should also be marked similarly at the same corner.

 

If this is established, then there might be several reed pairs that have been positioned incorrectly, including the superfluous D as mentioned in an earlier post, so a bit of swapping around may be needed to correct things to the standard fingering as shown in Don Taylor's post above.

 

I hope this helps..... Good luck.

 

 

 

 

 

 

Edited June 15 by malcolm clapp
Correction

[Lappy]

5 hours ago, malcolm clapp said:

I may be wrong, but I would suggest that it is likely the right hand reed pan is incorrectly positioned by 180 degrees. The reed pan should have a letter R and/or the 4050 number at the corner directly behind the badge cartouche on the face plate. The bellows frame should also be marked similarly at the same corner.

 

If this is established, then there might be several reed pairs that have been positioned incorrectly, including the superfluous D as mentioned in an earlier post, so a bit of swapping around may be needed to correct things to the standard fingering as shown in Don Taylor's post above.

 

I hope this helps..... Good luck.

 

 

 

 

 

 

You, Sir, are a life saver! I can’t thank you enough, Malcolm. You have solved my problem.

[malcolm clapp]

Glad to have been of assistance.

Good luck with further renovations if needed.