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Dash removal help ideas for 1941 Packard 120.

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I had some electrical and cosmetic problems, so I decided to remove my dash completely from The Duchess, my 1940 160. I will post some pix on "The Duchess Project" blog here, but I haven't quite finished. The dash is still out of the car, but pre-assembled,
I also recreated the '40 wiring diagram so that it can be scaled up to any size without losing resolution in both an original version and a modified version using relays and fused distribution blocks. I want to write a narrative, but I only have time to post pix this morning.

There are two nuts, one at each far lower corner on the back side of the dash on 1940 dashes. Plus the screws under the windows, plus any obvious screws holding the shell to the understructure along the bottom edge.

To pull the dash all the way out, you have to release the hand throttle from the holding screw on the firewall engine compartment.

One window wanted to fall out when I removed the dash. It stayed in place when I removed the surround, but moved in when I removed the dash shell.

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I have removed the nuts on the bolts and they are loose. The screws along the base of the windshield are removed and I still can’t get it loose from the dash frame. It flexes from the bottom but won’t come loose on top. I can’t find anything else to take loose.
Also having trouble removing the instrument knobs. Three of them have no set screw or catch to release. I have not tried heating the stem or rod that goes into the plastic knob for fear of damaging the knob or switch.
Your help and discussion is very much appreciated.
Thank you

Did you remove the bolts where the steering columns attaches to dash?

Others have better info on removing the dash but on the knobs many in that era are of one piece knob and shaft construction. The bezel will unscrew and the knob and shaft will come out as an assy rather than just the knob removing from the shaft as was typical in later models. Headlight sw is definitely done this way but not sure what else you have that might be similar.

Here is a typical prewar headlight sw showing that construction. Pull the knob out and unscrew the chrome bezel from the front of the dash. That will let the switch drop a bit allowing access under the dash to push down on a small strip of spring steel to release the bent end of the shaft from the sw tongue. The assy can then be removed.

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Thanks——you really answered the question. Great help.

Here are some behind-the-dash pix. The new disconnects I added get in the way, so you might try putting a light back there, then stick your smartphone under there and take some blind shots to see what you have to deal with.
After all the screws were out, my dash did stick along the top due to some black sealant, so it may just be stuck. Also it may be hung up on the wiper control. Be careful because you don't want to bend the fork that comes out from the wiper motor toward the control. There is a nut holding the control.

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Howard sent you the light switch info.
The starter button is held with 2 nuts on the back, on the '40, the screws have square heads that nestle in square indentations behind the cover plate on the shell. To get the cover plate off, you have to get the light switch, the cigar lighter and hand throttle off.
\Disocnnect the wires to the cugar lighter and (battery off) twist the inside of the lighter which unscrews from its housing. See pic.
The ignition is the same as the starter button.
The handtrottle unscrews like the light switch, so you can remove the cover plate part way. To pull the dash and cover plate, as mentioned, you have to release the end of the hand throttle cable on the firewall engine compartment.