Mr Ishermann is originally from Arberuthven where he grew up as David Allardyce before changing his name to Chris Ishermann.
As a young man, he worked as a cleaner and usher at Perth Theatre before training as a drama teacher and moving to London to work in the theatre industry.
During his long career, he worked at the prestigious Theatre Royal in Drury Lane and was working as house manager at the capital’s Lyric Theatre on the night actor Leonard Rossiter died in his dressing room part way through a sell-out performance.
Last year, Mr Ishermann (66) retired as manager at the West End’s Duchess Theatre after working there for more than 20 years.
Producer James Seabright, whose show `Old Boys’ was the final production Mr Ishermann managed, nominated him for The Stage award.
He described him as one of the last old-school theatre managers who still sported a dinner jacket for work and who greeted every audience member with care and attention before each performance.
Mr Ishermann shared the annual award with former casting director Anne McNulty and was presented with it at a party on Burns Night.
He said: “When I was told I was up for the award, I thought someone was having me on but unbelievably I was and I was actually awarded it.
“I shared it with a lovely lady who is a casting director and it was amazing just to be in the same category as her.”
Mr Ishermann describes himself as “just a theatre worker who did the job as best I could for many years.”
He added: “It’s really not a nine to five job because things happen unexpectedly and you have to deal with them – but this was the job I always wanted to do.”
And during his career, Mr Ishermann did have to deal with some unexpected events – perhaps most memorably the death of Rising Damp star Rossiter during a performance of the Joe Orson play `Loot’ in October 1984.
Mr Ishermann recalled: “He was at the height of his fame and popularity then after playing Reggie Perrin in the ‘The Fall and Rise of Reginald Perrin’.
“The show was a sell-out and he was brilliant in it and very professional but that night he came on for the first act and then failed to make his next appearance.
“His co-star was having to improvise on stage and I went running through to his dressing room to find him and there he was lying there.
“He had a heart attack and I had to go onto the stage and ask: `Is there a doctor in the house?’”
Unfortunately, Mr Rossiter couldn’t be saved – but the show continued after the star’s understudy took over.
Mr Ishermann concluded: “It was a terrible thing to happen but I just had to see it as part of the job and get on with it.”