Army dirigible, ‘Gamma’ captained by J.N. Fletcher, an old boy of Berkhamsted School (now Berkhamsted Collegiate School) landed in the castle grounds in 1913.

Gamma dirigible 1913
Army dirigible, ‘Gamma’ captained by J.N. Fletcher, an old boy of Berkhamsted School (now Berkhamsted Collegiate School) landed in the castle grounds in 1913.
Gamma dirigible 1913